<一> MVC - HtmlHelper

HtmlHelper类位于System.Web.Mvc.Html之中主要有七个静态类组成：

FormExtensions - BeginForm, BeginRouteForm, EndForm

InputExtensions - CheckBox, CheckBoxFor, Hidden, HiddenFor, Password, PasswordFor, RadioButton, RadioButtonFor, TextBox, TextBoxFor

LinkExtensions - ActionLink, RouteLink

SelectExtensions - DropDownList, ListBox, ListBoxFor

TextAreaExtensions - TextArea, TextAreaFor

ValidationExtensions - Validate, ValidateFor, ValidationMessage, ValidationMessageFor, ValidationSummary

RenderPartialExtensions - RenderPartial，显示用户控件